Outer surface of a tractor hood



FIG. 1 is an elevated front perspective view of an outer surface of a tractor hood showing our new design, the broken line showing of the tractor is for illustrative purposes only, and forms no part of the claimed design;

FIG. 2 is an enlarged plan view thereof;

FIG. 3 is an enlarged left side elevational view thereof;

FIG. 4 is an enlarged right side elevational view thereof;

FIG. 5 is an enlarged rear elevational view thereof; and,

FIG. 6 is an enlarged front elevational view thereof. 

The ornamental design for an outer surface of a tractor hood, as shown and described. 